TYPE SPECIMENS OF PALEOZOIC FOSSILS 549 



Hall. Paleontology of New York. 1879. v. 5, pt 2, 

 pi. i, fig. 3. 



Onondaga limestone Williamsville, Erie co. N. Y. 



3377 I TYPE Hall. Illustrations of Devonian fossils. 1876. Gaster- 



opoda, pi. i, fig. 7. 



Hall. Paleontology of New York. 1879. v - 5 P* 2 > 

 pi. i, fig. 7. 



Onondaga limestone Schoharie N. Y. 



Platyceras dumosum Conrad. 



3378 -i^-lps. TYPE Platyceras dumosum Conrad. 3d annual 



report on the paleontology of New York. 1840. p. 205. 



Hall. Illustrations of Devonian fossils. 1876. Gaster- 

 opoda, pi. 6, fig. i. 



Hall. Paleontology of New York. 1879. v. 5, pt 2, 

 pi. 6, fig. i. 



Onondaga limestone Schoharie N. Y. 



3379 ^f HYPOTYPE Hall. Paleontology of New York. 1879. v - 5> 



pt 2, pi. 29, fig. 8. 



Schoharie grit Schoharie county, N. Y. 



J. Gebhard purchase 



3380 J^Jfl-a HYPOTYPE Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pi. 28, fig. 20. 



Onondaga limestone Schoharie N. Y. 



Platyceras echinatum Hall. 



.3381 -i-ttsjifi. TYPE Platyceras echinatum Hall. Descriptions 

 of new species of fossils from the Upper Helderberg, 

 Hamilton and Chemung groups. 1861. p. 10. 



Hall. Illustrations of Devonian fossils. 1876. Gaster- 

 opoda, pi. 5, fig. 3,4. 



Hall. Paleontology cf New York. 1879. v. 5, pt 2, 

 pi. 5, fig. 3, 4. 



Tully limestone Ovid, Seneca co. N. Y. 



Platyceras erectum Hall. 



3382 iQAis HYPOTYPE Acroculia erecta Hall. Geology of 

 New York; report on the 4th district. 1843. p. 174. 



Platyceras erectum Hall. Illustrations of 

 Devonian fossils. 1876. Gasteropoda, pi. 2, fig. 5, 6. 



Hall. Paleontology of New York. 1879. v. 5, pt 2, 

 pi. 2, fig. 5, 6. 



Onondaga limestone Ontario 



